Influence of stage configuration on flow parameters in a stagewise extraction column

An extraction column with internal plates in the form of alternated discs a nd rings is studied. Simulations of pulsed turbulent flow operational regim es are made. The stage configuration is varied by changing the geometry par ameters of the plates - plate free area and interplate distance. The flow s tructure is visualised by streamline pictures. They show an existence of pe rmanent vortices in the stage that is also experimentally detected. The tur bulent energy characteristics of the now are determined too. Zones of highe r energy contents are localised on the Stage and their evolution in positio n, volume, and intensity is registered as depending on stage geometry. Corr espondence between these zones and the zones of intensive drop break-up is experimentally observed.